{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59992","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-07T19:41:00.005Z","datePublished":"2026-08-19T21:30:51.975Z","dateUpdated":"2026-08-21T16:48:12.641Z"},"containers":{"cna":{"title":"Tina: Broken Access Control: arbitrary bucket-key write/delete in `next-tinacms-s3` (and sibling production media adapters)","problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4"},{"name":"https://github.com/tinacms/tinacms/pull/7088","tags":["x_refsource_MISC"],"url":"https://github.com/tinacms/tinacms/pull/7088"},{"name":"https://github.com/tinacms/tinacms/commit/d44558e9b4502d4f4fc2c970d22985339fe2b6ce","tags":["x_refsource_MISC"],"url":"https://github.com/tinacms/tinacms/commit/d44558e9b4502d4f4fc2c970d22985339fe2b6ce"},{"name":"https://github.com/tinacms/tinacms/releases/tag/next-tinacms-s3@23.0.4","tags":["x_refsource_MISC"],"url":"https://github.com/tinacms/tinacms/releases/tag/next-tinacms-s3@23.0.4"}],"affected":[{"vendor":"tinacms","product":"tinacms","versions":[{"version":"< 23.0.4","status":"affected"}]},{"vendor":"tinacms","product":"next-tinacms-s3","versions":[{"version":"< 23.0.4","status":"affected"}]},{"vendor":"tinacms","product":"next-tinacms-dos","versions":[{"version":"< 23.0.4","status":"affected"}]},{"vendor":"tinacms","product":"next-tinacms-azure","versions":[{"version":"< 14.0.4","status":"affected"}]},{"vendor":"tinacms","product":"next-tinacms-cloudinary","versions":[{"version":"< 26.0.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-19T21:32:09.476Z"},"descriptions":[{"lang":"en","value":"Tina is a headless content management system. Prior to next-tinacms-s3 23.0.4, next-tinacms-dos 23.0.4, next-tinacms-azure 14.0.4, and next-tinacms-cloudinary 26.0.4, the first-party production media adapters pass attacker-controlled object keys to storage SDK upload and delete operations without enforcing the operator's configured mediaRoot. In packages/next-tinacms-s3/src/handlers.ts, createMediaHandler accepts req.query.key for a signed PutObject URL and the DELETE path uses req.query.media as the DeleteObjectCommand key. The same missing key-boundary check exists in packages/next-tinacms-dos/src/handlers.ts, packages/next-tinacms-azure/src/handlers.ts, and packages/next-tinacms-cloudinary/src/handlers.ts. An authenticated CMS editor can therefore create or delete objects anywhere the deployment's storage credential can reach, including other tenants' or non-media objects. These issues are fixed in next-tinacms-s3 23.0.4, next-tinacms-dos 23.0.4, next-tinacms-azure 14.0.4, and next-tinacms-cloudinary 26.0.4."}],"source":{"advisory":"GHSA-8mq9-5fw2-5rm4","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/tinacms/tinacms/security/advisories/GHSA-8mq9-5fw2-5rm4","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T16:47:38.735308Z","id":"CVE-2026-59992","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-21T16:48:12.641Z"}}]}}